Efficacy Against Severe RGE*

ROTARIX demonstrated efficacy vs placebo in the prevention of rotavirus gastroenteritis (RGE)1

ROTARIX demonstrated significant efficacy in the prevention of severe RGE1,2,†

Severe gastroenteritis defined as ≥11 on the Vesikari scale.2

Significant efficacy through 1 rotavirus season1

  • 96% efficacy against G1 (95% CI: 86, 100) (P<0.05 vs placebo) 
  • 95% efficacy against combined non-G1 (G2, G3, G4, G9) (95% CI: 85, 99) (P<0.05 vs placebo) 
  • Efficacy against severe RGE for G2P[4] was not significant through 1 season due to fewer episodes of G2 RGE

SIGNIFICANT EFFICACY IN THE PREVENTION OF SEVERE RGE THROUGH 2 ROTAVIRUS SEASONS COMBINED1,2

Graph of significant efficacy in the prevention of severe RGE through 2 rotavirus seasons combined

Study design

A randomized, double-blind, placebo-controlled study was conducted in 6 European countries comparing ROTARIX (n=2646) vs placebo (n=1348) (total vaccinated cohort). The first dose was given at 6-14 weeks of age, and the second dose was given at least 4 weeks after the first dose. The 2-dose series was completed by 24 weeks of age. Analysis of the ATP cohort included all infants in the efficacy cohort who received 2 doses of vaccine according to randomization (ROTARIX, n=2572; placebo, n=1302).1,2  

 

  • There are two formulations of ROTARIX: a reconstituted lyophilized formulation (supplied in a vial and oral dosing applicator presentation) and a liquid formulation (supplied in an oral dosing applicator only presentation). Efficacy was evaluated using the reconstituted lyophilized formulation. These data are relevant to the liquid formulation because both formulations contain the same live, attenuated rotavirus strain and are manufactured using a similar process.1

 

ATP=according to protocol; CI=confidence interval.